Featured Research

from universities, journals, and other organizations

Computer Vision Test Holds Promise For Robotic Eye Doctor

Date:
November 15, 2001
Source:
NASA/Jet Propulsion Laboratory
Summary:
A five-minute vision test using a laptop computer with a touch-sensitive screen can be used on Earth and in space to help diagnose the onset of eye diseases and even certain types of brain tumors.

A five-minute vision test using a laptop computer with a touch-sensitive screen can be used on Earth and in space to help diagnose the onset of eye diseases and even certain types of brain tumors.

With one eye covered, a person sits in front of a computer screen divided into a grid. The subject stares at a central spot on the touch-sensitive screen and, using a finger, outlines missing areas of the grid. The computer records, processes and displays a 3-D image of the subject's visual field. The test for each eye takes about 4 to 5 minutes.

"As NASA moves forward to establish a permanent presence in space, this may be considered a breakthrough step for the creation of an autonomous onboard physician," said Dr. Wolfgang Fink, physicist and senior member of the technical staff at NASA's Jet Propulsion Laboratory, Pasadena, Calif. "It is a non-invasive, quick and easy process that gives astronauts and physicians on the ground an almost instant auto-diagnosis. This type of technology will be useful for long-term space missions where early detection and advance monitoring will be key to the health of the astronauts."

Fink, a visiting research assistant professor of ophthalmology at the University of Southern California, Los Angeles, developed the 3-D Computer-Based Threshold Amsler Grid Test as part of his post-doctoral research while at the California Institute of Technology in Pasadena, with his colleague Dr. Alfredo Sadun, Thornton professor of ophthalmology at USC. Caltech manages JPL for NASA.

"This new test is not only more revealing than standard visual field tests, but it is also much quicker and simpler than existing methods. This test may make visiting an ophthalmologist cost-effective, convenient and fast, giving the doctor a tool to do a better job," said Sadun.

This tool has been undergoing testing in clinical trials that began last year at the Doheny Eye Institute, Keck School of Medicine at USC. Trial results show that the screening test helps detect a variety of eye conditions, such as glaucoma and macular degeneration-- the two leading causes of blindness. Early detection of these conditions and appropriate treatment are crucial in preventing further loss of sight.

Caltech has filed a full patent on the screening test, and several companies have expressed interest in licensing the technology that may become commercially available as early as next year. Future uses envisioned are: monitoring the effects of intracranial pressure elevation in low-gravity environments and evaluation of possible stroke onset and of acute and chronic stroke conditions. Funding for this project was through a grant from the National Science Foundation, Arlington, Va. JPL is the lead U.S. center for robotic exploration of the solar system.

More information is available at: http://www-aig.jpl.nasa.gov/public/mls/home/wfink/3DVisualFieldTest.htm .


Story Source:

The above story is based on materials provided by NASA/Jet Propulsion Laboratory. Note: Materials may be edited for content and length.


Cite This Page:

NASA/Jet Propulsion Laboratory. "Computer Vision Test Holds Promise For Robotic Eye Doctor." ScienceDaily. ScienceDaily, 15 November 2001. <www.sciencedaily.com/releases/2001/11/011112074009.htm>.
NASA/Jet Propulsion Laboratory. (2001, November 15). Computer Vision Test Holds Promise For Robotic Eye Doctor. ScienceDaily. Retrieved July 24, 2014 from www.sciencedaily.com/releases/2001/11/011112074009.htm
NASA/Jet Propulsion Laboratory. "Computer Vision Test Holds Promise For Robotic Eye Doctor." ScienceDaily. www.sciencedaily.com/releases/2001/11/011112074009.htm (accessed July 24, 2014).

Share This




More Health & Medicine News

Thursday, July 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

New Painkiller Designed To Discourage Abuse: Will It Work?

New Painkiller Designed To Discourage Abuse: Will It Work?

Newsy (July 24, 2014) The FDA approved Targiniq ER on Wednesday, a painkiller designed to keep users from abusing it. Like any new medication, however, it has doubters. Video provided by Newsy
Powered by NewsLook.com
Doctor At Forefront Of Fighting Ebola Outbreak Gets Ebola

Doctor At Forefront Of Fighting Ebola Outbreak Gets Ebola

Newsy (July 24, 2014) Sheik Umar Khan has treated many of the people infected in the Ebola outbreak, and now he's become one of them. Video provided by Newsy
Powered by NewsLook.com
Condemned Man's US Execution Takes Nearly Two Hours

Condemned Man's US Execution Takes Nearly Two Hours

AFP (July 24, 2014) America's death penalty debate raged Thursday after it took nearly two hours for Arizona to execute a prisoner who lost a Supreme Court battle challenging the experimental lethal drug cocktail. Duration: 00:55 Video provided by AFP
Powered by NewsLook.com
China's Ageing Millions Look Forward to Bleak Future

China's Ageing Millions Look Forward to Bleak Future

AFP (July 24, 2014) China's elderly population is expanding so quickly that children struggle to look after them, pushing them to do something unexpected in Chinese society- move their parents into a nursing home. Duration: 02:07 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins